Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 27.3, Problem 3CC
WHAT IF? Ø Describe what you might eat for a typical meal if humans, like cyanobacteria, could fix nitrogen.
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The nitrogen cycle involves the movement of atmospheric nitrogen
through a series of nitrifying bacteria, which process the nitrogen
into forms that can be absorbed and used by other living organisms,
Which of the following paths best represent the correct order of this
process, starting with atmospheric nitrogen and ending with a form
of nitrogen that most plants (producers) can use?
Select one:
O a. N2(g) → ammonium → nitrite → nitrate
-
b. nitrite →→ ammonium →→ N2(g) →→ nitrate
-
c. nitrate → N2(g) → ammonium → nitrate
d. ammonium nitrate → nitrite → N2(g)
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Differentiate the three domains of life.
Archaea
Bacteria Eukarya
Presence of cell wall (+/-)
Presence of cell membrane (+/-)
Presence of mitochondria (/-)
Presence of chloroplast (/-)
Presence of peptidoglycan (+/-)
Presence of capsules (+/-)
Type of cell membrane linkage on lipids
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Chapter 27 Solutions
Campbell Biology (11th Edition)
Ch. 27.1 - Describe two adaptations that enable prokaryotes...Ch. 27.1 - Contrast the cellular and DNA structures of...Ch. 27.1 - Prob. 3CCCh. 27.2 - Although rare on a per gene basis, new mutations...Ch. 27.2 - Distinguish between the three mechanisms by which...Ch. 27.2 - In a rapidly changing environment, which bacterial...Ch. 27.2 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 27.3 - Distinguish between the four major modes of...Ch. 27.3 - A bacterium requires only the amino acid...Ch. 27.3 - WHAT IF? Describe what you might eat for a...
Ch. 27.4 - Explain how molecular systematics and metagenomics...Ch. 27.4 - WHAT IF What would the discovery of a bacterial...Ch. 27.5 - Explain how prokaryotes, though small, can be...Ch. 27.5 - MAKE CONNECTIONS Review Figure 10.6. Then...Ch. 27.6 - Identify at least two ways that prokaryotes have...Ch. 27.6 - Prob. 2CCCh. 27.6 - Prob. 3CCCh. 27 - Describe features of prokaryotes that enable them...Ch. 27 - Mutations are rare and prokaryotes reproduce...Ch. 27 - Describe the range of prokaryotic metabolic...Ch. 27 - How have molecular data informed prokaryotic...Ch. 27 - In what ways are prokaryotes key to the survivaI...Ch. 27 - Prob. 27.6CRCh. 27 - Genetic variation in bacterial populations cannot...Ch. 27 - Photoautotrophs use (A) light as an energy source...Ch. 27 - Which of the following statements is not true? (A)...Ch. 27 - Prob. 4TYUCh. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 27 - WRITE ABOUT A THEME: ENERGY In a short essay...Ch. 27 - SYNTHESIZE YOUR KNOWLEDGE Explain how the small...
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- The process whereby nitrogen is brought into organic molecules is called.___________ nitrification denitrification nitrogen fixation nitrogen cyclingarrow_forwardatom2 Laura picks some soil near a factory and finds the soil to be very acidic. She checks the pH and finds it to 2 She takes this soil and Streaks it in a nutrient agar plate and finds some growth. Answer the following questions based on the above information a. If pH is 2 what is the (H+]in this soil b. Which domain will you put these organisms in? c Are they Prokaryotes or Eukaryotes? d. Do thev have DNA 3.arrow_forwardThink about the conditions (temperature, light, pressure, and organic and inorganic materials) that you may find in a deep-sea hydrothermal vent. What type of prokaryotes, in terms of their metabolic needs (autotrophs, phototrophs, chemotrophs, etc.), would you expect to find there?arrow_forward
- Can someone please help me with 3 multiple choice question, please choose the best that fits, Thank you 1) Most of the nitrogen on earth is contained in nitrogen gas in the atmosphere, which of the following orgnisms convert nitrogen to a form accessible to the rest of the biological community ? A)fungi B)nitrogen fixing prokaryotes C) plants D) nitrogen fixing protists 2)if a meteor impact or volcanic eruption injected a lot of dust into the atmosphere and significantly reduced the sunlight reaching Earth's surface for one year, which of the following marine communitites would be least affected? A)coral reef B)estuary C) intertidal D) deep -sea-vent E) wetlands 3)In terrestrial biomes, which factor is dependent on all the others? A)mineral nutrient availability B)annual average precipitation C) soil structure D)the specific plant and animal species E) light availabilityarrow_forwardBacteria make exoenzymes in order to:(a) Make structures within the bacterium(b) Synthesize large molecules of carbohydrates, proteins,and nucleic acids(c) Hydrolyze large molecules to smaller ones so that theycan be transported into the bacterium(d) Synthesize molecules needed by fastidious organisms(e) None of the above; bacteria do not make exoenzymesarrow_forwardNitrogen-fixing bacteria live throughout the ocean, from its sunlit upper waters to 200 meters (650 Feet) beneath its surface. Recall that nitrogen is a limiting factor in many habitats. What effect would an increase in populations of marine nitrogen-fixers have on carbon uptake and primary productivity in those waters?arrow_forward
- answer ASAP.arrow_forwardTest Your Understanding 7. The conversion of ammonia to nitrate, known as _______, is a two-step process performed by soil bacteria. (a) nitrogen fixation (b) nitrification (c) assimilation (d) ammonification (e) denitrificationarrow_forwardThe movement of matter is _______________ in ecosystems, and the movement of energy is _________________. (a) linear; linear (b) linear; cyclic (c) cyclic; cyclic (d) cyclic; linear (e) cyclic; linear or cyclicarrow_forward
- Home Tools 6weekwomensfull... 8.27 x 11.69 in Nelson Biology 11... 6 17 TAIL: L _1_1_--- Unit 1- Quiz on Le... x 188% xxx 16. Most bacteria are heterotrophs. What is a heterotroph? Heterotrophs produce their food from inorganic substances O Heterotrophs use sunlight to produce sugar O Heterotrophs, like halophiles, sunlight to produce their food Heterotrophs obtain energy by feeding off other organisms D L---: ??arrow_forwardWe know that bacteria and archaea are very diverse in their metabolic capabilities, such as the consumption of organic waste and carbon dioxide and the creation of others such as oxygen, alcohol, methane, nitrates, and antibiotics. Amazingly these known capabilities only come form the 1-10% of prokaryotes that have been identified. Scientists hypothesize that at least 90% are undiscovered and have potential metabolic capabilities we could harness to benefit human life. If you were a scientist, what metabolic capability of bacteria would you try to discover to solve a human or environmental problem? Why?arrow_forwardIS IT A FACT OR A BLUFF? 1. Bacterial genetic material is composed single stranded DNA as compared to human DNA which is double stranded. 2. Just like humans, all microbes need oxygen to grow and reproduce. 3. There are no living microbes in volcanic vent and in hot spring because microbes die at very high temperature. 4. Most bacteria growth is retarded at low temperature. 5. Bacterial ATP production happens in the mitochondria which is the powerhouse of the cell. After identifying your answer whether fact or bluff, you need to give justification to your answer. You Justification should be given in not more that 50 words.arrow_forward
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